Home / 56,012.19-77,295.86-30,518.77

Finding the Fourth Proportional to 56,012.19, 77,295.86 and 30,518.77

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Solution

The fourth proportional to 56,012.19, 77,295.86 and 30,518.77 is: 42,115.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,012.19 : 77,295.86 = 30,518.77 : x
  2. Step 2: Convert to fraction form
    56,012.19/77,295.86 = 30,518.77/x
  3. Step 3: Cross multiply
    56,012.19x = 77,295.86 × 30,518.77
  4. Step 4: Simplify right side
    56,012.19x = 2,358,974,372.39
  5. Step 5: Solve for x
    x = 2,358,974,372.39/56,012.19
  6. Step 6: Final answer
    x = 42,115.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.